Rollup merge of #77086 - ehuss:src-libunwind, r=Mark-Simulacrum

Include libunwind in the rust-src component.

Some targets, such as musl, need the libunwind source to build the unwind crate (referenced [here](0da5800745/library/unwind/build.rs (L142))).

Fixes rust-lang/wg-cargo-std-aware#59
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Jonas Schievink 2020-09-25 19:42:37 +02:00 committed by GitHub
commit b49990cede
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@ -1033,7 +1033,7 @@ impl Step for Src {
copy_src_dirs(
builder,
&builder.src,
&["library"],
&["library", "src/llvm-project/libunwind"],
&[
// not needed and contains symlinks which rustup currently
// chokes on when unpacking.